Added guard to only compile if LWIP_NETCONN is enabled

apps/shell/shell.c

@@ -30,6 +30,12 @@
  *
  */
 
+#include "shell.h"
+
+#include "lwip/opt.h"
+
+#if LWIP_NETCONN
+
 #include <string.h>
 #include <stdio.h>
 
@@ -1463,6 +1469,4 @@ shell_init(void)
   sys_thread_new("shell_thread", shell_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
 }
 
-
-
-
+#endif /* LWIP_NETCONN */

apps/tcpecho/tcpecho.c

@@ -29,6 +29,11 @@
  * Author: Adam Dunkels <adam@sics.se>
  *
  */
+#include "tcpecho.h"
+
+#include "lwip/opt.h"
+
+#if LWIP_NETCONN
 
 #include "lwip/sys.h"
 #include "lwip/api.h"
@@ -88,5 +93,4 @@ tcpecho_init(void)
 }
 /*-----------------------------------------------------------------------------------*/
 
-
-
+#endif /* LWIP_NETCONN */

apps/udpecho/udpecho.c

@@ -30,6 +30,12 @@
  *
  */
 
+#include "udpecho.h"
+
+#include "lwip/opt.h"
+
+#if LWIP_NETCONN
+
 #include "lwip/api.h"
 #include "lwip/sys.h"
 
@@ -69,3 +75,5 @@ udpecho_init(void)
 {
   sys_thread_new("udpecho_thread", udpecho_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
 }
+
+#endif /* LWIP_NETCONN */